David s



TENDER AND OTHER BRAKES.

No. 253,312. Patented Feb. 7,1882.

FIG. I.

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' NITED STATE-s PATENT om n.

DAVID S. RANDOLPH, OF ST. LOUISfMISSOURI, ASSIGNOR TO THE AMERI- CANBRAKE COMPANY, OF- SAME PLACE.

TENDER AND OTHER BRAKES.

SPECIFICATION forming part of Letters Patent No. 253,312, dated February'7, 188

Applicationfiled July 18,1881. (No model.)

To all whom it may concern: Y

. Be it known that I, DAVID S. RANDOLPH, a citizen of the United States,residing at the city of St. Louis, in the State of Missouri,have 5invented certain new and useful Improvements in Tender and other Brakes;and I do hereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the accompanyingdrawings, in which-- Figure I is an elevation showing devices embodyingmy invention attached to the footboard of a locomotive-cab for operatingthe tender-brakes. Fig. 11 is an elevation partly in section of thedevices attached. Fig. III is 15 a similar view,the devices having beenturned due-quarter.

Like letters refer to like parts wherever they occur.

Myinvention relates 'to the construction and manner of supporting thecylinder and its appurtenances which operate the brake mechanism, and isapplicable to steam, air, and similarly-operated brakes.

It consists mainly in supporting the brake- 2 lever and its fulcrum fromthe cylinder by whose piston the brake-leverisoperated,whereby a compactmechanism and one readily attached and detached is obtained, and,secondarily, in the combination of the brake-lever, its 0 fulcrum, link,and swiveling fulcrum-frame,

whereby the power and position of the brakelever may be adjusted at willto suit varying brake mechanisms and platforms.

I will now proceed to describe my invention more fully, in order thatthose skilled in the art to which it appertains may apply the same.

In the drawings, A indicates the cylinder, and B the piston, operated byair, steam, or fluid, as the case may be. In the present instance 40 thecylinder is shown as attached to the footboard of a locomotive-cab andsupplied with steam through a pipe a, controlled by a valve, 0, fromwhich a steam-pipe, (I, may lead to the cylinder for operating thelocomotive-brakes;

but the location, &c., is immaterial, and the foregoing is given for thepurposes of illustration and not for limitation. 'The cylinder A isattached to the foot-board or other support by an intermediate singlebracket, D, bolted 5o directlyto the cylinder, as ate 0, and thisbracket may be of any shape which the peculiar construction of theengine or equivalent point of attachment demands.

At the outer end of piston B are jaws b, between which is pivoted thebrake-lever E, so as to be operated by the piston. This brakelever hasin its long arm a series of holes, 6, or equivalent means for adjustingits connection 1 with the brake-chain or equivalent mechanism nearer toor farther from the source of power or piston, and at its opposite endasecond series of holes for adjusting the fulcrum nearer to or fartherfrom the power. By this means the power applied to the brakes may beregulated at will or as necessity dictates. 6

F indicates a frame or bar pivoted at the axis of the cylinder A by abolt, a, and capable of a turning movement. When adjusted the frame orbar may be fixed or clampedtby a suitable not or its equivalent. The bartermi- 7o nates at one end or affords attachment for a guide, G, whichis preferably formed at its extremity into aloop, which, in case of therupture of the brake-chain, will limit the movement of the lever E, andat its opposite end is pivoted a link, L, adjustably pivoted to thebrake-lever E, as at Z, to form the fulcrum of the lever. To accommodatethe connection at I this extremity of lever E is preferably curved, asshown.

In applying to use devices embodying my invention the bracket D, havingbeen formed of the required shape to support the cylinder in theposition it is to occupy, is bolted or otherwise firmly secured directlyto the cylinder and to the "foot-board of the locomotive-cab or otherpointof attachment. The nut is loosened and the bar or framellis turned,carrying with it the fulcrum-link L, guide G, and brake-lever E, androtating the piston until the lever E has 0 assumed the angle requiredto make a straight connection with the brake mechanism, after which thenut may be tightened to clamp and hold the bar or frame I By this meansthe position of the lever E may be varied to give 5 it varyinginclinations to adapt the devices to the varying height of cab-platformsmet with on diflerent locomotives. The slack of the brake-chain may thenbe taken up and the pow-- er of the lever regulated by shifting theconnecroo tions between the chain and lever and between the lever andfulcrum-link, as hereinbcfore specified.

The operation of the devices will be as follows: Steam, air, or fluid,being admitted to cylinder A, will force out piston B, causing themovement of the long arm of lever E, and through the medium of thebrake-chain will apply the brakes. Should the brake-chain rupture, thecontinued outward movement of the lever E will be prevented by the loopof the guide G, and any material injury to thedevices will be avoided.

These devices will not interfere with the use of the hand-brake.

Thematerialadvantagesof my invention are the ability to vary the set orinclination ofthe brake-lever to suit varying heights of cab-platforms,the ability to obtain a straight connection between the brake-lever andbrake mechanism, the ability to vary the power with which the brakes areapplied, and the protection afforded the devices in case the brakechainruptures.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, 1s-- 1. In a tender or like brake, the combination,with the horizontally-arranged brake-cylinder and its piston, of abrake-lever having its fulcrum supported by the brake-cylinder, saidlever being pivotally connected directly to the piston of thebrake-cylinder, substantially as and for the purpose specified.

2. In a tender orlike brake, the combination, with thehorizontally-arranged brake-cylinder and its piston, of a swivelingfulcrum-frame pivoted on the axis of the cylinder, a brakeleverpivotally connected to the piston, and a fulcrum-link pivotallyconnected to the swiveling fulcrum-frame and to the brake-lever,

substantially as and for the purpose specified.

3. The combination, in atender or like brake mechanism,of thehorizontally-arran ged brakecylinder and its piston with thefulcrum-frame pivoted on the axis of the cylinder, the brakeleverpivotally connected to the piston and having a series of holes at itsends for the adjnstment of theconnections with the brakes andfulcrum-link, and the fulcrum-link pivotally connected with the fulcrumframe and the brake-lever, substantially as and for the purposespecified.

In testimony whereof I at'fix my signature, in

presence of two witnesses, this 14th day of July, 1881.

DAVID S. RANDOLPH. Witnesses:

.MILLARD F. WATTs, WM. A. MORRIS.

